Part A
ADM211EARSZ
ADI公司
- Lifecycle
- Active
- Stock
- 4657 件
- Package
- SSOP-28
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The ADM211EARSZ and ADM211EAR are functionally equivalent RS-232 transceivers from the same ADM211E family, sharing identical driver/receiver counts, supply voltage range, and data rate. The only material distinction is the RoHS-compliant, lead-free SOIC-28 packaging of the ADM211EARSZ versus the standard SOIC-28 package of the ADM211EAR, making the ADM211EARSZ a suitable drop-in candidate where lead-free compliance is required.
Driver/Receiver Configuration
High match
Supply Voltage Range
High match
Data Rate
High match
Package and RoHS Compliance
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM211EARSZ | ADM211EAR | Why it matters |
|---|---|---|---|
| Package / Case | 28-SSOP (Shrink Small Outline Package) | 28-SOIC (Small Outline Integrated Circuit, Wide Body) | The package footprint and pin pitch differ, so the two parts are not drop-in board-level replacements; PCB layout must match the specific package. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, but the differing package body means the land pattern is not interchangeable. |
| Supplier Device Package | 28-SSOP | 28-SOIC Wide | Confirms the physical package designation used for footprint and assembly tooling selection. |
| Number of Drivers/Receivers | 4/5 | 4/5 | Identical transceiver channel count ensures the same interface capacity for RS-232 communication. |
| Protocol | RS232 | RS232 | Both implement the same RS-232 protocol, so they are functionally compatible at the interface level. |
| Data Rate | 120 kbps | 120 kbps | Matching maximum data rate means equivalent throughput capability for serial links. |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Identical operating supply range allows use in the same 5 V system rails. |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | Same industrial temperature range supports equivalent environmental deployment. |
| Mounting / RoHS Status | RoHS Compliant | RoHS Compliant | Both meet RoHS compliance, satisfying the same regulatory and environmental requirements. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM211EARSZ | ADM211EAR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 4/5 | 4/5 |
| Duplex | Full | Full |
| Receiver Hysteresis | 650 mV | 650 mV |
| Data Rate | 120Kbps | 120Kbps |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between ADM211EARSZ and ADM211EAR?
ADM211EARSZ and ADM211EAR are both Analog Devices RS-232 transceivers in a 28-lead SSOP package. The ADM211EARSZ is the RoHS-compliant, lead-free (Pb-free) version, while the ADM211EAR is the non-RoHS leaded version. Functionally and electrically they are the same device; the suffix difference denotes packaging/environmental compliance.
Are ADM211EARSZ and ADM211EAR electrically and functionally interchangeable?
Yes. Both parts share the same datasheet specifications: 5 V single-supply RS-232 transceiver with four drivers and five receivers, internal charge pump, and 28-lead SSOP package. The only documented difference is RoHS/lead-free status, so they are functionally interchangeable in designs that accept either compliance option.
What is the supply voltage and data rate of the ADM211E?
The ADM211E operates from a single 5 V supply and supports RS-232 data rates up to 120 kbps, per the Analog Devices ADM2xxE datasheet.
How many drivers and receivers does the ADM211E provide?
The ADM211E integrates four RS-232 drivers and five RS-232 receivers in a single 28-lead SSOP package.
Does the ADM211E include an internal charge pump?
Yes. The ADM211E includes an on-chip charge pump that generates the RS-232 voltage levels from a single 5 V supply, eliminating the need for external ±12 V rails.
What package do ADM211EARSZ and ADM211EAR use?
Both devices are supplied in a 28-lead SSOP (Shrink Small Outline Package), designated by the "RS" code in the part number.
Which part should be selected for RoHS-compliant production?
ADM211EARSZ should be selected for RoHS-compliant assemblies because the "Z" suffix denotes lead-free, RoHS-compliant construction. ADM211EAR is the non-RoHS leaded variant and should only be used where leaded parts are explicitly permitted.
Can ADM211EAR be used as a drop-in replacement for ADM211EARSZ?
Electrically and functionally yes, since both share the same die specifications and 28-lead SSOP footprint. However, substituting a non-RoHS part (ADM211EAR) for a RoHS part (ADM211EARSZ) may violate the assembly's environmental compliance requirements, so verify compliance obligations before substitution.